baber/WOPTO huggingface dataset:
Patent GB-1233497-A (GB)
IPC: F22G5/12
Filed: 1969-11-24
Abstract: 1,233,497. Direct-contact cooling of steam; steam generators. SIEMENS A.G. 24 Nov., 1969, No. 57462/69. Headings F4A and F4K. In a steam cooler 1, the steam flowing in a tube 2 is cooled therein by an injection of water and/or steam, the latter flowing through passage means (shown as a coil 17) disposed along the inner surface of the tube 2 before entering an injector 12 from which it passes as a stream or streams 21 into the steam to be cooled. In the power plant shown boiler steam is supplied to the cooler 1 at inlets 4 and 5, and cooled steam flows threefrom, arrows 11, to a turbine. Injection water is tapped from the feed line upstream of preheaters 31, 32 and a heat exchanger 28 (or alternatively as shown by the dotted line, a heat exchanger 3C shown as located in a starting device connected by a pipe 33 to the turbine exhaust) and enters the cooler at 13. Some of the tapped-off water is injected into the steam line upstream and downstream of the cooler 1 as indicated.
Patent GB-1234341-A (GB)
IPC: A41D1/02
Filed: 1969-08-20
Abstract: 1,234,341. Garment linings. GREIFFWERKE GUSTAV WINKLER K.G. 20 Aug., 1969 [23 May, 1969], No. 41562/69. Heading A3V. A suit jacket comprises an outer laye and at least one lining 2, which internally lines at least part of the outer layer to which it is stitched, the lining comprising a net-like fabric at least in the region of the jacket which in use covers the wearer's back. The mesh of the fabric may vary in size and shape, e.g. triangular, round, polygonal, oval elliptical, over the length and/or width and be formed of different materials, including threads of different colour and/or thickness, the material including rubberised threads and plastics foil. Similar or different separate layers may be superimposed on each other, lie directly adjacent to or be spaced from one another. There may be a porous underlay to the net-like lining. The net-like lining may be in addition to a usual, lining 2 or replace all or part thereof in which latter case it may be joined thereto by a strip 5 of material.
Patent GB-1251778-A (GB)
IPC: C07C265/12
Filed: 1970-08-19
Abstract: 1,251,778. 2 - Chloro - 4 - trichloromethylphenyl isocyanate. FARBENFABRIKEN BAYER A.G. 19 Aug., 1970 [19 Sept., 1969], No. 39923/70. Heading C2C. The invention comprises 2-chloro-4-trichloromethylphenyl isocyanate. This compound may be prepared by treating 4-trichloromethylphenyl isocyanate with elemental chlorine in the presence of a nuclear halogenation catalyst (e.g. one of those mentioned in Houben-Weyl, Volume V (3, page 652 (1962)). The preferred catalyst is iodine. The above compound may also be hydrolysed with a mineral acid to produce 3-chloro-4-aminobenzoic acid.
Patent GB-1253091-A (GB)
IPC: B22C5/04
Filed: 1969-01-23
Abstract: 1,253,091. Foundry moulding machines. BAKER PERKINS Ltd. 16 April, 1970 [23 Jan., 1969], No. 3759/69. Heading B3F. [Also in Division B1] A foundry moulding machine for preparing moulds from a cold-setting sand/resin/catalyst mixture, has a mixer 7 which both forms the mixture and impels it into a mould-box 9. Sand from a hopper 1 is supplied to two horizontal mixers 3, 4 where the sand is mixed with metered quantities of resin and catalyst respectively. The separate mixtures are delivered to a final mixer 7 where two mixing elements 8 rotate at high speed in the directions indicated by the arrows to impel the final mixture into a mould-box 9 containing a pattern 12. After filling the mould-box a plate 14 moves below the mixer 7. The completed mould is then compressed against the plate by a ram 10. The mould is stripped from the pattern 12 by pins 13.
Patent GB-1256972-A (GB)
IPC: G07F9/10
Filed: 1968-01-30
Abstract: 1,256,972. Winding resistances. ELECTRONIC ASSOCIATES Ltd. 6 Feb., 1969 [30 Jan., 1968; 27 Aug., 1968], Nos. 5973/69 and 40871/68. Heading B3A. In a method of winding a resistance wire on an insulated mandrel to form a potentiometer winding, the insulating material is softened by passing an electric current through the wire so that the wire partly embeds itself in the insulating material and the turns of wire are thereby held in spaced apart positions. The mandrel, which may be an enamel insulated copper wire 1 coated with PVB, is rotated between chucks (not shown) and passed through a hollow guide nose 2, which guides resistance wire 3 into coils 4 of the required pitch. The wire is fed from a package 5 via a tensioning capstan 8 and electric motors 6, 9 are energized to rotate oppositely to the feed direction to tension the wire 3. The capstan 8 is partly immersed in a bath of cleaning solvent to clean the wire. A gold alloy brush 11 moves along the wire together with the nose 2 and the assembly of the package 5, pulleys and motors in the direction of the arrow. Electric current is supplied to the wire 3 between the brush 11 and the capstan 8 from a supply 12, thereby sufficiently heating the wire to soften the PVB around the core wire 1, and the current passed therethrough will depend upon the depth of penetration required into the insulation. The wound core wires, when removed from the chucks may be subsequently wound into helices. The spacing between adjacent turns of the resistance wire may be about one quarter of its diameter.
Patent GB-1258061-A (GB)
IPC: B23K1/08
Filed: 1968-02-23
Abstract: 1,258,061. Soldering. ENGLISH ELECTRIC CO. Ltd. 21 Feb., 1969 [23 Feb., 1968], No. 8968/68. Heading B3R. [Also in Division C7] In making a heat exchanger a metallic compound is passed through the bore of an aluminium or light alloy body to produce an immersion deposit of metal on the bore by displacement, followed by a mixture of a chemically reducible metallic salt and a reducing agent to chemically deposit a layer of solderable metal over the immersion deposit, a component is inserted into the bore in contact with the solderable metal and the bore is flushed with molten solder to wet the mating surfaces of the component and bore. The heat exchanger may provide a heat sink for diodes, thyristors &c. and may also form a busbar, being cooled by water or oil passed through the bore. An aluminium tube 1 is cleaned, arranged vertically or inclined and connected in circuit with a pump which supplies aqueous solutions of sodium hydroxide, sulphuric acid and nitric acid to etch the bore. The bore is then coated with zinc by pumping an aqueous solution of sodium hydroxide, e.g. 400 gms-litre and zinc oxide, e.g. 80 gms-litre through the bore. After washing with de-mineralized water the bore is electroless plated with nickel by pumping through a solution of nickel chloride (30 gms/litre), trisodium citrate (100 gms/litre) sodium chloride, (5 gms/litre) ammonium chloride (50 gms/litre) and sodium hypophosphite (10 gms/litre) the solution being pumped for 5 minutes at 88-90‹ C. with pH 8-10. After washing, the bore is coated with flux and a fluxed turbulator formed by a coil 3 held by a wire 4 on a spindle 2, all of copper, is inserted into the bore. The assembly is immersed in 60/40 tin/lead solder and agitated to wet the mating surfaces. After cooling a soldered joint is formed between the coil and bore.
Patent GB-1265662-A (GB)
IPC: F22G7/14
Filed: 1968-09-23
Abstract: 1,265,662. Marine boilers. BABCOCK & WILCOX Ltd. 22 Sept., 1969 [23 Sept., 1968], No. 45198/68. Heading F4A.  A vapour generating and superheating unit in a ship propulsion plant, Fig. 1, comprises a furnace chamber 12, a first gas pass 43, Fig. 5, having superheater sections 56, 53 and a second gas pass 44 having superheater sections 71, 62 and reheating means 59, both passes being arranged for the parallel flow therethrough of combustion gases, the superheater sections 56, 71 being arranged for serial flow of vapour before it is cooled in attemperating means 78, while sections 53, 62 are arranged for serial flow after cooling in the attemperating means, and dampers 74, 75 controlling gas flow through the two passes. The attemperating means 78, arranged for parallel flow of steam, are contained in a separating drum 17 together with desuperheating means (79), Fig. 2 (not shown), arranged for serial flow of steam. The furnace chamber 12 fired by oil burners 23, has tube walls 18, 26 (31), Fig. 4 (notshown), and 11, the latter tubes of which defining an upflow passage 13 for combustion gases, which is divided into the passes 44, 43 the upper part of pass 43 housing economizers 45. Tube walls 18, 26 each extend between a header 15 and the drum 17 while tube wall (31) extends between headers (33) and the drum 17 via headers 34. The passage 13 has tube walls which each extend between headers 37, (38), Fig. 3 (not shown), and then to the drum 17. To drive the ship ahead, steam is generated for the high-pressure turbine of the main turbine system and the dampers 74, 75 and a three-way valve 80 are adjusted, so that the reheater 59, reheating steam between stages of the turbine system, and attemperator 78 result in the steam temperature at the high-pressure turbine being at the desired level. In astern operation dampers 75 are closed, since the reversing turbine does not require reheated steam, and valve 80 adjusted to ensure steam at the desired temperature reaches the turbine.
Patent GB-1289984-A (GB)
IPC: G06V30/224
Filed: 1969-10-10
Abstract: 1289984 Character recognition INFORMATION TECHNOLOGY Inc 10 Oct 1969 [22 Jan 1969] 49914/69 Heading G4R Character reading apparatus senses the character on a document using a plurality of photodetectors at up to three positions along a direction of travel of the document until it is recognized. The document (bearing a customer number) is inserted lengthwise into the apparatus. A sensing head comprising a light source and an array of 13 photodetectors is driven transverse to the length of the document until it detects a group of dashes on the document, when the document is driven by a stepping motor lengthwise until a start character is detected, after which the document is further driven to a first sensing position for the first character of the customer number. If the character is recognized by logic at this position, the document is driven to the next character, but if not a second sensing position is tried, and if recognition is still not achieved, a third. If recognition is not achieved at this, a lamp is lit to warn the operator to enter the character at a keyboard also used for entering cheque amounts. The outputs from the recognition logic and keyboard go to a data storage centre.
Patent GB-1296842-A (GB)
IPC: B22C1/16
Filed: 1969-06-17
Abstract: 1296842 Shell moulds A DUNLOP 14 May 1970 [17 June 1969 30 July 1969] 30528/69 and 38179/69 Heading B5A A shell mould is produced by coating a pattern with a slurry containing a soluble silicate, coating it with dry refractory, applying a liquid gelling agent to gel the silicate, neutralizing or washing out excess gelling agent and repeating the above steps to a desired thickness. The slurry of the primary coating may be an alkaline silicate solution, the gelling agent including a phosphorus-containing compound, and the neutralizing or washing agent may be alkaline water, e.g. ammonia. Subsequent coating slurries may be acid solutions, e.g. of sodium or potassium silicate, or ethyl silicate, the neutralizing or washing agents being water and alcohol, respectively.
Patent GB-1297248-A (GB)
IPC: B29C48/03
Filed: 1970-11-13
Abstract: 1297248 Feeding extruders BARMAG BARMER MASCHINENFABRIK AG 13 Nov 1970 [25 Nov 1969] 54089/70 Heading B5A [Also in Division B8] A hopper 1 for supplying powdered materials to evacuated processing machines, e.g. thermoplastic materials to a screw extruder, has a material feed pipe 6 with a shut-off valve 7, a level indicator 5 to detect a low level of material in the hopper and open the valve 7, a pressure transducer 3 actuated by the gas and moisture given off by the material to close the valve 7 at a predetermined pressure and a pipe 9 connected through a self-cleaning filter 8 and possibly an accumulator 11 to a vacuum pump 10. The hopper has a flange 12 for connection to the processing machine.
Patent GB-1310335-A (GB)
Title: Structural units
IPC: E04B2/14
Filed: 1971-04-02
Abstract: 1310335 Laminating; sawing C KAY 2 April 1971 8519/71 Headings B5L and B5N [Also in Division E1] A method of assembling slabs S, Fig. 9C, and binder plates P into structural units, e.g. for buildings, comprises positioning a pair of slabs in spaced parallel relation and inserting a binder plate between them. The slabs S are preferably of wood, which may be laminated with veneer of wood or plastics, and the plates P are preferably of cold rolled steel and have flanges along the edges which engage the slabs. In making the units, a pair of slabs S are placed on a platen 18, Figs. 1 and 4, and supported in spaced apart parallel relation by spacer blocks 31, a fixed plate 32 and a spring urged movable plate 34. The binder plates are held magnetically on units 130, Fig. 1, carried by a movable platen 110. The plates are positioned by members 131 and 140. The machine also includes a plurality of circular saws 88 carried on a shaft 84 supported in plates 82 on a movable platen 66. In operation of the machine, the slabs and plates are positioned and the platen 66 is raised so that the saws 88, Fig. 10C are advanced to cut grooves in the facing surfaces of the slabs S. The saws are then withdrawn and the platen 110 is lowered so that the plates P are inserted into the slots with their edge flanges entering the slab material. The saws and plates are guided during insertion by rollers, e.g. 132, which engage the slab surfaces. The platen 110 is then raised, and the completed unit removed, or, if the slabs are long, repositioned for the insertion of further plates.
Patent GB-1315521-A (GB)
Title: Hydrazides
IPC: C07D237/30
Filed: 1970-01-06
Abstract: 1315521 Hydrazides FISONS Ltd 19 April 1971 [6 Jan 1970] 561/70 Heading C2C Cyclic carboxylic acid hydrazides are prepared by reacting a dicarboxylic acid or the anhydride thereof with an azine. Preferable acids are maleic acid, succinic acid, phthalic acid and α,#-naphthalene dicarboxylic acid. The azines which could advantageously be used are: dimethyl ketazine, methyl ethyl ketone azine, methyl propyl ketone azine and cyclohexanone azine. The examples describe the preparation of maleic hydrazide and phthalic hydrazide.
Patent GB-1321239-A (GB)
Title: Battery charging systems
IPC: H02P9/48
Filed: 1969-12-02
Abstract: 1321239 Automatic voltage control JOSEPH LUCAS (INDUSTRIES) Ltd 17 Nov 1970 [2 Dec 1969] 58725/69 Heading G3R A battery charging system for a road vehicle comprises a permanent magnet alternator 11 supplying the battery 14 through a full wave  rectifier including thyristors controlled by an oscillator responsive to the battery voltage, which oscillator is formed by transistors 21, 24 and their associated components and controls the charge and discharge of a capacitor 32 to respectively block and fire the thyristors. The charging circuit is through resistor 25 (transistor 24 on), diode 31, resistors 33 and the gatecathode paths of the thyristors, whilst the discharge circuit (transistor 24 off) is through resistors 33, the gate-cathode paths and transistor 29 held on by current through a resistor 26, which transistor forms a low resistance path across diode 31 and resistor 26 whose resistance is chosen to limit the current through the transistor 24. When the battery voltage is below a predetermined level, Zener-diode 19 is non-conductive to allow transistors 21, 24 to oscillate. When the level is exceeded the diode 19 conducts to stop operation of the oscillator, each thyristor turning off as soon as it is reversebiassed and remaining off until the battery voltage falls below the level. Turn off of the oscillator also occurs if the battery leads become disconnected, thus protecting the system from damage, and if the resistors 17, 22 become disconnected from the battery.
Patent GB-1321613-A (GB)
Title: Antiseptic preparation
IPC: A61K9/12
Filed: 1969-10-11
Abstract: 1321613 Antiseptic aerosol preparations IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Sept 1970 [11 Oct 1969] 50048/69 Heading A5B [Also in Division C4] Antiseptic pharmaceutical preparations for topical application comprise povidone-iodine in the form of a dry powder in association with one or more aerosol propellents. Preferably at least one aerosol propellent has a high-boiling point in the range from 0‹C to 30‹C (e.g. CHCl 2 F, CCl 3 F, CH 2 Cl. CF 3 , CCl 2 F. CF 3 , CCl 2 F. CClF 2  or CClF 2 . CClF 2 ), and at least one has a low boiling point in the range from -20‹C to -40‹C (e.g. CHClF 2 , CCl 2 F 2  or CHF 2 .CH 3 ).
Patent GB-1322907-A (GB)
Title: Needling machines
IPC: D04H18/00
Filed: 1970-03-11
Abstract: 1322907 Needling machines HINDLE SON & CO Ltd 19 April 1971 [11 March 1970] 11567/70 Heading D1R A needling machine comprises a reciprocable needle beam comprising a plurality of end-toend sections and drive means for reciprocating the sections in a predetermined sequence. The machine may comprise, Fig. 1, beam sections N 1  to N 6  each reciprocated via rods 4 by a pair of eccentrics on shaft 2. The pairs of eccentrics are angularly spaced about shaft 2 to reciprocate the beam segments in the required sequence. Shaft 2 may comprise shafts, one for each beam section, joined by flexible couplings C which may be constructed to allow the relative angular dispositions of the pairs of eccentrics to be adjusted. A flywheel may be coupled to each eccentric or pair of eccentrics. Alternatively (Fig. 4, not shown) each beam section may be reciprocated via four rods by two pairs of eccentrics, each pair being mounted on a separate shaft extending transverse to the beam sections. Each transverse shaft is rotated via worm or bevel gearing by a shaft extending parallel to the beam sections. Guide means for the beam sections may comprise half-cross-heads G1, Fig. 3a, on the ends of adjacent beam sections which slidably engage a fixed bar G2 between the ends.
Patent GB-1323695-A (GB)
Title: Determination of the mean size of solid particles contained  in a medium
IPC: G01N23/20
Filed: 1969-10-02
Abstract: 1323695 Measuring mean particle size photoelectrically NATIONAL RESEARCH DEVELOPMENT CORP 8 Sept 1970 [2 Oct 1969] 48563/69 Heading G1A The mean size of particles suspended in a liquid or solid medium is determined by subjecting the medium, to radiation, e.g. from radio-isotope X- ray source 11, containing a component which produces Compton-scattered radiation from the medium having an intensity depending on the particle size, and then measuring the ratio of the intensity of this Compton radiation to the intensity of the Rayleigh-scattered radiation derived from the same irradiating component, this ratio being indicative of the particle size. Alternatively, the incident X-radiation 12 contains two components which produce two corresponding Comptonscattered radiation wavelengths from the medium whose intensities are respectively independent of and dependent on the mean particle size. The ratio of these two Compton intensities hence indicates the mean particle size. In both embodiments the source is <SP>238</SP>Pu, but for the Rayleigh/Compton measurement the incident component of interest is the L# energy, whereas the Compton/Compton measurement utilizes the Lα 1  and Lγ 1  energies to produce the two investigated scattering wavelengths. The scattered radiation is detected by a lithium-drifted silicon X-ray detector 14, whose output is analysed as regards its energy spectrum by either a multichannel analyser or two single-channel analysers 15. In the Rayleigh/Compton measurement the concentration of particles in the medium must also be known, and this may be measured using a y-ray density gauge 16. In Fig. 1 the medium under investigation is a flowing suspension of particles in a liquid, but the average size of solid particles suspended in a solid medium may also be determined.
Patent GB-1329961-A (GB)
Title: Textile treating composition
IPC: D06M15/693
Filed: 1969-04-18
Abstract: 1329961 Butyl rubber solution or dispersion PHILIP PARRINDER (SALES) Ltd 17 July 1970 [18 April 1969] 20024/69 Heading C3P [Also in Division D1] A textile treating composition comprises a solution or dispersion in a suitable liquid vehicle of a hydrocarbon wax and minor proportions of butyl rubber and a water-repellent aluminium soap both proportions being based on the weight of the hydrocarbon wax. The soap may be aluminium stearate or oxystearate. The composition may contain a minor porportion of butyl titanate which enhances the heat resistance of the coating. The butyl rubber solution is generally of about 10% w/w strength and it is preferred to incorporate the paraffin wax in an amount of from 3 to 30 times by weight of the amount of rubber by weight. A suitable liquid vehicle is perchloroethylene. An exemplified composition also contains colloidal silica and dioctyl sebacate.
Patent GB-1352131-A (GB)
Title: Arc welding torches and methods
IPC: B23K10/02
Filed: 1970-04-14
Abstract: 1352131 Welding by fusion BRITISH OXYGEN CO Ltd 19 April 1971 [14 April- 1970] 17765/70 Heading B3R In a plasma arc welding torch a consumable electrode 2 is fed axially through a central non-consumable electrode 8. The electrode 8 comprises a water-cooled copper shank 6 on which is screwed a tip 8 of W, Ta, Mo, Zr or any alloy of these. A surrounding electrode 10 is of copper and is water-cooled. Plasma forming gas is introduced into the gap 12 between the electrodes 8, 10 and plasma guiding gas is introduced into a space 18 between the electrode 10 and a nozzle 16 of refractory and insulating material. Current sources 20, 21 are connected across respectively the electrodes 8, 10 and the electrode 8 and the workpiece 22. The shank 6 and/or electrode 8 are/is in sliding contact with the consumable electrode 2. In operation of Fig. 1, a pilot are is struck between the electrodes 8, 10 from the source 20 and thereafter transferred to the workpiece and maintained from the source 21. The consumable electrode 2 is then fed towards the workpiece, the electrode function being transferred to the electrode 2 as it emerges from the electrode 8, droplets 28 of fused electrode metal then being projected from the electrode 2 into the workpiece molten pool 26. Although the electrode 2 is shown at positive potential, it may be at a potential below that of the workpiece, with the electrode 10 at an intermediate potential. In Fig. 2, the source 20 is connected to the electrode 10 through an adjustable resistor 30 and to the workpiece through a normally closed contact IR of a relay connected between the source 21 and the workpiece. The contact IR is opened when current through the relay  reaches a chosen minimum. In operation, a non-transferred are is struck between the electrodes 8, 10 from the source 20, the current value being restricted by adjusting the resistor 30. When the torch is sufficiently close to the workpiece the arc is transferred to extend between the electrode 8 and the workpiece from the source 20. The consumable electrode 2 is fed towards the workpiece and when it extends beyond the electrode 10 an arc is struck between the consumable electrode and the workpiece from the source 21, the then energized relay opening the contact IR, thereby leaving the non-transferred arc between the electrodes 8, 10 and an arc between the consumable electrode 2 and the workpiece. On cessation of the consumable electrode feed, the arc thereof lengthens and the current from the source 21 reduces to de-energize the relay and close the contact IR. The transferred arc from the source 20 may then readily be struck and used for crater filling. Source current and voltage values are specified.